Segment Information (Revenues from External Customers) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Jan. 01, 2022	Oct. 02, 2021	Jul. 03, 2021	Apr. 03, 2021	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Segment Reporting Information [Line Items]
Segment revenues from external customers	$ 221,293	$ 229,665	$ 243,531	$ 240,173	$ 204,232	$ 198,479	$ 202,273	$ 207,640	$ 934,662	$ 812,624	$ 789,213
U.S. [Member]
Segment Reporting Information [Line Items]
Segment revenues from external customers									883,160	772,333	752,000
Canada [Member]
Segment Reporting Information [Line Items]
Segment revenues from external customers									10,625	14,067	12,481
Other [Member]
Segment Reporting Information [Line Items]
Segment revenues from external customers									$ 40,877	$ 26,224	$ 24,732